超声辅助提取仿栗种衣油工艺优化及其脂肪酸组成分析  

Technology Optimization on Ultrasonic-assisted Extraction of Sloanea hemsleyana Aril Oil and Its Fatty Acid Composition Analysis

作　　者：苏超[1] 蒲灵操[1] 吴凡[1] 肖旺[1] 吴丽雅[1] 麻成金[1,2] 

机构地区：[1]吉首大学食品科学研究所,湖南吉首416000 [2]吉首大学植物资源保护与利用湖南省高校重点实验室,湖南吉首416000

出　　处：《中国食物与营养》2013年第5期47-52,共6页Food and Nutrition in China

基　　金：湖南省大学生研究性学习和创新性实验计划项目(项目编号:湘教通[2011]272号);吉首大学大学生研究性学习和创新性实验计划(项目编号:JSU-CX-2011-42);湖南省高校创新平台开放基金(项目编号:09K089)

摘　　要：以仿栗种衣为原料,利用响应面法(RSM)优化超声波辅助提取仿栗种衣油工艺条件。在单因素试验基础上,设定超声工作/间歇时间为4s/1s,选取料液比、提取温度、超声时间、超声功率为影响因子,仿栗种衣油得率为响应值,应用Box-behnken中心组合试验设计建立数学模型,进行响应面分析。确定了超声波辅助提取仿栗种衣油最佳工艺优化条件为:料液比1∶7.6、提取温度43℃、超声时间21min、超声功率395W,仿栗种衣油得率可达60.26%。对仿栗种衣油脂肪酸组成GC-MS分析可知,其不饱和脂肪酸含量为68.55%,其中油酸和亚油酸相对含量分别为60.77%和7.78%。Taking the Sloanea hemsleyana aril as raw material, Response Surface Methodology （RSM） was used to optimize ultrason- ic aided extracting condition of Sloanea hemsleyana aril oil. Based on single factor experiment, we set the ultrasonic running and interim time 4s/1 s, chose the solid-liquid ratio, the extraction temperature, ultrasonic time and ultrasonic power as impact factor and the yield of oil as response value, applied Box-behnken central composite experimental design to establish the mathematical model. Result showed that the optimum extraction conditions of ultrasonic aided extracting were liquid ratio 1： 7.6, extraction temperature 43℃, ultrasonic time 21rain and ultrasonic power 395W. The essential oil yield was 60. 26%. Through the GC-MS analysis of fatty acid in Sloanea hemsleyana aril, total content of unsaturated fatty acids was 68.55% , among which oleic acid and linoleic acid content were 60. 77% and 7.78% re- spectively.

关 键 词：仿栗种衣 超声波 响应面法 气相色谱-质谱分析 

分 类 号：TS225.1[轻工技术与工程—粮食、油脂及植物蛋白工程]